Assign writer to be your Firefox homepage, Writer gets you right to the writing you want to do each day. The no frills interface--green text on black--is conducive to writing quickly and easily.
Web-based word processor that allows people to work together in real time. Has the fascinating time slider feature. Students can share drafts and collaborate on papers at the same time and at a distance.
Composing
More uses for these Composing tools will be added to this page:
Mindmapping
freemind
mindmeister
gliffy
Writing
Google docs: free online word processorWriter:free online word processor
EtherPad
Buzzwords: free online word processor by Adobe
Celtx: free screenwriting app
. . . more